Here you can find the source of invertRegions(int[][] image)
public static int[][] invertRegions(int[][] image)
//package com.java2s; /***************************************************************************** ** ANGRYBIRDS AI AGENT FRAMEWORK/* w w w . j a v a2 s . c o m*/ ** Copyright (c) 2013,XiaoYu (Gary) Ge, Stephen Gould,Jochen Renz ** Sahan Abeyasinghe, Jim Keys, Kar-Wai Lim, Zain Mubashir, Andrew Wang, Peng Zhang ** All rights reserved. **This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. **To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/ *or send a letter to Creative Commons, 444 Castro Street, Suite 900, Mountain View, California, 94041, USA. *****************************************************************************/ public class Main { public static int[][] invertRegions(int[][] image) { final int height = image.length; final int width = height > 0 ? image[0].length : 0; for (int y = 0; y < height; y++) for (int x = 0; x < width; x++) image[y][x] = image[y][x] == 0 ? 1 : 0; return image; } }